<mt:CategoryNext>
A container tag which creates a category context of the next category relative to the current entry category or archived category.
If the current category has sub-categories, then CategoryNext will generate a link to the next sibling category. For example, in the following category hierarchy:
News
Gossip
Politics
Sports
Events
Oakland
Palo Alto
San Francisco
Sports
Local College
MBA
NFL
If the current category is "News" then CategoryNext will link to "Events". If the current category is "Oakland" then CategoryNext will link to "Palo Alto".
Attributes:
- show_empty
Specifies whether categories with no entries assigned should be counted and displayed.

Imabug
September 7, 2007 6:09 AM | Reply
CategoryNext and CategoryPrevious do not seem to take you out of or into subcategories.
If the current category has subcategories, CategoryNext will link to the next category at the same level (the next sibling category), not the current category's first subcategory.
Similarly, if you're at the first or last subcategory, CategoryPrevious will not point to the parent category and CategoryNext won't point to the next parent category.
Byrne Reese
September 14, 2007 10:04 AM | Reply
@Imabug - Thanks for your feedback. The documentation has been amended.